Lubricating-spring.



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l Patented Mm. 26, 19E@ PATENT 111W KCE MATHIAS KIES, 0F DUBUQUE, IOWA.

LUBRICATING-SPRING'.

Be it known that I, MATHIAS KIES, a citizen of the United States, residing at Dubuque, in the county of Dubuque and State of Iowa, have invented certain new and useful Improvements in Lubricating-Springs, of which the following is a specification.

This invention relates to springs and it is the dominant object of the invention to provide an improved self-lubricating spring whereby the adjacent faces of the various leaves 'will be constantly supplied with lubricant, thereby eliminating the squeaking and material wear ofthe same, as Well as permitting the proper functioning thereof at all times.

Another and equally important object of the invention is .to provide a spring lubricating device which will cause lubricant to be uniformly supplied to the. entire bearing surfaces of the same.

It is also an object of the invention to pro-- vide novel means for preventing the leaking of the lubricant over the sides of the leaves of the spring, thereby avoiding any possibility of the material accumulation ofdirt or grit thereon.

l The invention consists, furthermore, in the novel arrangement and combination of the parts of the spring, aswell as in the details of the construction of the same, all of which will be more fully described in the following specification and then finally embodied in the clauses of the claim, which are appended to the specification and which form an essential part of the same.

The invention is clearly illustrated in the accompanying drawings, in which:-

Figure l is a side elevation of the improved spring,

Fig. 2 is a detail in top plan of a frag-l ment of one ofthe leaves, i Fig. 3 is a fragmental detail of the same bhowing one of the apertured lugs,

Fig. 4 is a similar view of a slightly modified form, and,

Fig. 5 is a side elevation of another A slightly modified form.

Having more especial reference to the drawings and in connection with which like reference characters will designate -correspending parts throughout the several views thereof, the numeral 1 represents the spring in its entirety, it being noted that the same is composed of a plurality of semi-elliptical leaves generally indicated by the numeral 2,

Specification oi' Letters Patent.

Application led November 22, 1917. Serial No. 203,36.

To all 'whom t may concern: 2

Patented Mar. 26, 1918.

4 formed in the upper bearing faces of the spring leaves 2. In this connection, it is to be understood that any number of these grooves 4 may be provided, such as conditions or preference4 may dictate, and further, that the same may extend in any de sired direction over the bearing faces of their respective leaves. The different sets of apertured lugs are adapted to be alined upon the assembling of the spring leaves EZ.

In order that an eliicient closure or bottom will be provided for the apertured lugs, the lower spring leaf is provided with spaced solid lugs 5, these lugs being so arranged as to permit the alining of the same with ythe alined apertured lugs 3. Instead of being apertured, indentations or recesses 6 are formed therein and communicate with oil distributing grooves similar to the grooves 4. Thus, when desiring to lubricate the spring, it is Ionly necessary to pour lubricant into the apertured bearing lugs 3 and due to the arrangement of the lubricant distributing grooves, the same will be evenly spread over Vthe bearing faces of the various leaves. Y

In the Fig. 4 I have shown a slightly modiied form of my'invention, forming semicircular grooves 8 about the openings in the apertured lugs 3 and about the recesses 6 in the solid lugs 5. By the provision of the semi-circular grooves, the possibility of leakage of the lubricant over the marginal edges of the leaves will be lessened and con! sequently, the accumulation of foreign matter, such as grit or the like thereon will be prevented.

I desire to have it understood, that I may form apertured lugs upon both sides of the `leaves of the springs, thus insuring the standing they' fact ythat the same Vary in length.

Manifestl the construction shown is eapable of considerable modification and such t'modicationl as is Within the scope of my claims, l consider Within the spirit of my invention.

I claim:- l. A spring formed from a plurality of 10 leaves, sets of alined apertured lugs on some of said'l'eaves, and solid lugs formed on the bottom leaf forming bottoms for said apertured lugs.

,2. A spring formed from a plurality of :Lemmi leaves, sets of alined apertured lugs on 15 some of said leaves, and solid lugs formed on the bottom leaf having recesses in the upper faces thereof and forming bottoms for the apertured lugs.

3. A spring composed of a plurality of 25 leaves having alined apertured lugs formed on certain thereof, and solid lugs formed on the bottom leaf, said leaves having oil distributing ways formed in the upper faces 'thereof communicating With said lugs. 25

In testimony whereof, I aHiX my signature hereto.

MATHIAS KIES. 

